Steel is an alloy of iron and carbon, along with other elements in varying amounts: 

• Iron
  The main ingredient in steel, usually making up 99% of carbon steel and mild steel. Iron is extracted from iron ore, which is a natural compound of iron, oxygen, and other minerals. 

• Carbon
  The main hardening agent in steel, with more carbon making steel harder and more brittle. 

• Other elements
  Small amounts of other elements, such as manganese, nickel, chromium, silicon, phosphorus, sulfur, and oxygen, are added to produce different grades of steel. For example, stainless steel typically contains around 11% chromium to make it resistant to corrosion and oxidation. 

Steel is made using two main processes: blast furnace/basic oxygen furnace and electric arc furnace. 

Steel is one of the most commonly manufactured materials in the world because of its high tensile strength and low cost. It's used in many applications, including: 

construction, cars, refrigerators and washing machines, cargo ships, surgical scalpels, bridges, tools, trains, bicycles, and machines.

WHY IS IT CALLED STEEL?

The noun steel originates from the Proto-Germanic adjective *stahliją or *stakhlijan 'made of steel', which is related to *stahlaz or *stahliją 'standing firm'. The carbon content of steel is between 0.02% and 2.14% by weight for plain carbon steel (iron-carbon alloys). 

WHAT IS STEEL PIPE?

Steel pipes are long and hollow tubes that are used for many different applications in a variety of places. Its versatility makes pipes the most often used product that is produced by the steel industry. They are commonly used to convey fluid substances that can flow, and small solid particles. 

8 Most Common Uses for Steel Pipe

1) THE CONSTRUCTION INDUSTRY. ...

2) THE OIL AND GAS INDUSTRY. ...

3) THE SHIPBUILDING INDUSTRY. ...

4) THE TEXTILE INDUSTRY. ...

5) THE AGRICULTURAL INDUSTRY. ...

6) INDUSTRIAL APPLICATIONS. ...

What is the importance of pipes?

Pipes are designed to facilitate the transmission and flow of fluids which makes them a versatile material in the home. Without these materials, most of the utilities in this type of building won't even function properly, much less work.